Striping device



July 9, 1935. A. A. ALE-XANDER STRIPING DEVICE Filed Sept. 2 8. 1934 I'NV-ENTOR I Arfhur'AA/exande/r 1 M ruu I ATTORN EYS Patented July 9, 1935 I a I f UNITED ST TE r F h- 1 ."aoomsi STBDPING DEVICE Arthur A. Aleirander, Newtonville, Mass assignor to Almar Striping Machine Corporation, a cor- I poration oi New York 1 Application'September 28, 1934, Serial No. 745,988 I I v lsoiaim (Ciel-east i r p y -.This invention relates to improvements in cap l3 in which is retained an inwardly opening striping devices andis directed more particularly check valve l4; "to structural refinements and improvements in Right and left side plates l5 and I6 respectivethe striping device shown and described in pendly, Figure 2, are secured to the sides of body H 5' ing application Serial No; 688,577, filed Septemby means of a screw l'l countersunk in plate 5 A her 8, 1933. I l5 and threaded into plate l6.

- In said pending application a device for ap- A pair of meshing spur gears I8 and l9, counplying stripes of paint, lacquer, 'or the like, for tersunkin the left side of body H, are closely emdecorative purposes is describ ed. By means of braced'therebyaround portions of their circum- 10 such a device, an unskilled person or an amajerencs to form a gear pump; The gear [8 is 10 teur may turn out a striping job equal to that rotatably mounted on a boss 29 formed on the ofaskilled hand striperr A bodyll. r 4 i a An object ofithe invention is the provision o r A peripherally knurled paint applying wheel 1 an improved striping device in which the striping 2| normally projecting from the right side of wheel has formed integral therewith one element I body I I, has a-hub 22 and an extended or second is of a gear pump which supplies paint and'the hub 23 on which is secured'the-gear l9. In some "like to the striping wheel. The provision of such cases'it y be preferable to construct he integral members greatly facilitates the changbers l9, 2|, 22 and 23 into a single unitary strucing of striping wheels in the device to produce ture. A stub shaft 24 securedin the left side stripes of diiierent widths. v plate 16, extends through the hubs 23 and 22 20 A further object of the invention is the proand wheel 2|, forming a substantially long bearvision in a stripingdev'ice'oi novel refinements ing therefor. V V

tending to produce stripes of uniform widths A passage 25 formed in the left sided body throughout Y i 1 it leads to the pump inlet space 26 adjacent-the 2 A still further object of the invention is the "juncture of gears" 511C119 froma hole 21 p 5 provision of an improved" device of the above 11 8 in the interior asa e"l A Second character whichmay be' easily andcheaply passage 28 in the left side of body I 1 leads fromthe ufactured'in quantit'y'f preduction; P discharge p to a pr s h m r 1 Further objects and advantages of the inven- I 30 formed jointly in body H an side'plates 9 tion willappear in the course oi the following and I6. v

description in connection with the attached From the chamber 30 a passage'il leads back drawing, in which: 4 into the magazine l2. A needle valve 32 3 Figure 1 is a sideview of the device, partlyln "threaded'into the "body l l and having an 3 section; I terior knurled adjusting head 33, intersects the Figure 2 is an enlarged cross sectional view of passage 3| "and is-adapted to control the n of L therp n applying and Pumping head; fluid through the latter. a

Fi ure 3 w p r e e viewrofrthe unitary d i The right side plate I5 contains a recess 34 Pam applying wheeliand Pumping e having sides asehd as; Fig. 5, closely embracing Figure fl f f fi fff g z opposite portions \of the circumference of the 40 3 832:} Figure w e g i 8 wheel 2|. The upper partof-recess 34 forms A a feed chamber 3'l connectedbyqa passage as marglegure 5 is a left elevation of the right side with the pressure chamber.3u. v

rr Two or more dowels 39 and "secured body 3 $23 3 2? the? em 11," are adapted to engage holes 4| and 42 in '45 w e e epaerev p1ate'l5 andholes 4a and 44 inplateli, to 111- sure accurate registration of the plates with the Figure '1 is' a .right elevation, oi. the left side plate. e r e r v r Y Referring to Figures 1 and 2) stripmahead A cross hole 45' in the body member ll is generally denoted by the numeral Ill comprises 9. pt d to receive any suitable ty e of guiding 0 body p o preferably a i to finger (not shown) which may be'clamped therel which is screwed in fluid tight relation a'holl'ow in by means of a screw-l6. handle or magazine 12 adapted to contain a. The operation oi. the device is as follows: volume of striping material such as paint,'lac- A quantity of'painthaving'been placedinthe q'uer; or the like. The magazine llhas a filler magazine l2, wheel 2| is placed on the surface 55 to be striped and the device moved in the direction indicated by the arrow, Figure 1, revolving the wheel 2|. The gear I! is thereby driven and drives the gear l8, setting up a pumping action which draws paint from the magazine i2 through the hole 21 and passage 26 carries it around the gears and forces it through the passage 2| into the pressure chamber 30. From thechamber 8| the paintisfedthrough the passage 88 to the feed chamber 21 where it is forced .Bgainst the knurled periphery of the revolving wheel 2|. The wheel carries the paint out and deposits it on the work'surface in a stripe having a width determined by the width of the knurled periphery.

Excess paint forced into the chamber 20 returns throughv the passage or by-pass 2| to the magazine i2. As different paints and lacquers have different degrees of viscosity it is necessary for uniform operation that they be fed to the wheel at different degrees of pressure. This is taken care of by adjusting the constrictlon placed inthe return passage II by means of the needle valve 22. The act of screwing the needle inward places an increased resistance on the flow throughthe passage. Consequently the pump builds up a greater back pressure in the chamber 20 and the paint is fed through passage II to the wheel at increased pressure. Sim ilarly, the constriction may be lessened to lower the feed pressure of freer-flowing fluids. By the means described, the'device is adapted to feed any type of paint or lacquer at the correct pressure to insure proper striping.

The check valveil admits air to the magazine l2 as the paint is exhausted therefrom, but closes to prevent leakage in case the device is inverted.

amount of paint or required, at the same time slightLv the back pressure. to

provide .for properjpick-up by the wheel at the greater It will be noted that the bottom of recess ll and the right side of body ll fit closely against right side plate I! areremoved. The unitary wheel and gear 2|, It, may then be withdrawn and replaced with ya similar structure having the desired width of wheel. Removal and replacement through the body II is made possible by use of the enlarged hub 22 which has a diameter equal to the outer diameter of the gear. When in place the end surface of hub 22 acts as partof the sealing side plate ofthe pump and I the periphery ofv the hub fits closely in the body tain the close sealing fit against the faces of the wheel as previously described.

The unitary structure of wheel 2i and gear I! has many advantages. It reduces the total number of working parts to two, namely the gear I! and the said unitary, structure, thereby promoting simplicity, ease of cleaning and assembly, and cheapness of manufacture. It furthermore provides a single long supporting bearing on the stationary shaft 24 for both wheel and gear whereby accurate guidance and alinement as well as durability are secured. No wear can occur between the gear and striping wheel, the latter being actually a part of the pump.

It will be noted that no loose pins or shafts are present in the structure, the gear ll revolvingon the boss "formed on the die cast body and the wheel 2| with its gear it having as an axle the shaft 24 which is rigidly fixed. at one end, in the left side plate II and supported at itsother end in the right side plate ll. Both side plates are doweled to the body to insure accurate registration and are tightly held thereto by a single screw II. The working elements are thus directly supported onstationary ax comprised in a rigid structure which maintains them in proper relationship to operate more smoothly and produce more uniform results than similar devices having loose pins, axles and parts subject to wear and loss of alinement.

While the invention is described in preferred form it is not limited to the precise structures shown, as various modifications may be made without departing from the scope of the appended claims.

What is claimed is:

1. In a stripping device in combination, a hollow casing adapted to enclose pigment, a body secured to said casing, a first and a second side plate removably secured to said body, said plates and body jointly enclosing a pressure chamber, apairofmeshinggearscomprisedinsaidbody and forming with said body and said first plate a gear pump, said body having formed therein a passage tosaid pump fromthointeriorofsaid casing, a second passage from said pumpto said chamber, and a restricted passage from said pressurechambertotheinteriorofsaidcasingia stripe producing wbeel removably comprised in said second side plate and forming with one of said gears a unitary structure whereby said pump may be operated by the rotation of said wheel topumppigmentfromsaidcasingtosaidpremn'e chamber, said second plate having formed therein a feed chamber in communication with the periphery of said wheel, and a channel said feed chamberwith said pressure chamber whereby pigment may be supplied from said pressure chamber to said wheel.

2. A device as claimed in claim 1, wherein the and having its other endsupportedinsaidother plate, a unitary structure rotatably mounted on said pin and comprising a peripherally knurled striping wheel and a central hub and a gear, a second gear rotatablydisposed in said body in meshwithsaidnrstgeartoconstitutetherewitb 15 a gear pump, means to supply striping fluid to said pump, and means to direct a part of said fluid from said pump to the periphery of said wheel.

4. A device as claimed in claim 3 in which the second gear is rotatably mounted on a boss formed integrally with said body, wherein the striping wheel is comprised axially in sealing relation between the ,body and one of the side plates, and wherein said plate embraces two substantially opposite portions of the periphery of said wheel in sealing relation.

5 In a striping device in combination, a wheel adapted to apply striping fluid to a surface in rolling thereon, and a pump, comprised of coopcrating pumping gears, operable by said wheel to supply striping fluid to the periphery thereof, one of said gears being formed integrally with said wheel.

6. In a striping device in combination, a peripherally knurled wheel adapted to apply paint to a surface in rolling thereon, a hub on said wheel, and a pump, comprised of cooperating pumping gears, adapted to supply paint to the periphery of said wheel, one pumping member of said pump being rigidly secured to said hub whereby said v pump may be actuated by rotation of said wheel.

, ing gears therein, one of said gears having a hub extending through a side of said body and rotat- -able therein in sealing relation, said hub having a diameter substantially equal to the outer diameter of said gear whereby said gear-and hub may be removable through said side, a striping wheel formed on the outer end of said hub and adapted to actuate said pump in rolling over a surface be striped, means to supply stripingfiuid to said pump, and means to feed a portion of said fluid from said pump to the periphery of said wheel.

8. In a striping device in combination, a gear pump having a body, a pair of cooperative pumping gears therein, one of said gears having a hub extending through a side of said body and rotatable therein in sealing relation, said hub having a diameter substantially equal to the outer diameter of said gear whereby said gear and hub may be removable through said side, a striping wheel formed on the outer end of said hub and adapted to actuate said pump in rolling over a surface to be striped, means to supply striping fluid to said pump, means to feed a portion of said fluid under pressure from said pump to the periphery of said wheel, and means to regulate said pressure. I I

9. In a striping device, a striping head comprising a body, two side plates, common means to removably secure said plates to said body, dowel pins in said body adapted to engage holes in said plates, a stationary pin rigidly supported by said plates and extending through said body, a unitary structure rotatively mounted on said pin and comprising a striping wheel, a hub thereon,

- a second hub extending beyond said first hub, and

a gear on said second hub, said first hub being rotatably in sealing relation in a side of said body and having a diameter substantially equal to the outer diameter of said gear, and a second gear rotatably mounted in said body in pumping relation with said first gear whereby a striping fluid may be pumped, and means adapted to direct said fluid to the periphery of said striping wheel, said wheel being adapted to roll on a surface to be striped while actuating said pumping gears.

ARTHUR A. ALEXANDER. 

